[原创] 井字棋

def printTable():
    print(' | |')
    print(''+board[1]+'|'+board[2]+'|'+board[3])
    print(' | |')
    print('-----')
    print(' | |')
    print(''+board[4]+'|'+board[5]+'|'+board[6])
    print(' | |')
    print('-----')
    print(' | |')
    print(''+board[7]+'|'+board[8]+'|'+board[9])
    print(' | |')
def isWinner(board):
    #print(board)
    if board[1] == 'O' and board[4] == 'O' and board[7] == 'O'or\
       board[2] == 'O' and board[5] == 'O' and board[8] == 'O'or\
       board[3] == 'O' and board[6] == 'O' and board[9] == 'O'or\
       board[1] == 'O' and board[2] == 'O' and board[3] == 'O'or\
       board[4] == 'O' and board[5] == 'O' and board[6] == 'O'or\
       board[7] == 'O' and board[8] == 'O' and board[9] == 'O'or\
       board[1] == 'O' and board[5] == 'O' and board[9] == 'O'or\
       board[3] == 'O' and board[5] == 'O' and board[7] == 'O':
        return 'O'
    if board[1] == 'X' and board[4] == 'X' and board[7] == 'X'or\
       board[2] == 'X' and board[5] == 'X' and board[8] == 'X'or\
       board[3] == 'X' and board[6] == 'X' and board[9] == 'X'or\
       board[1] == 'X' and board[2] == 'X' and board[3] == 'X'or\
       board[4] == 'X' and board[5] == 'X' and board[6] == 'X'or\
       board[7] == 'X' and board[8] == 'X' and board[9] == 'X'or\
       board[1] == 'X' and board[5] == 'X' and board[9] == 'X'or\
       board[3] == 'X' and board[5] == 'X' and board[7] == 'X':
        return 'X'
def boardisFree(board,step):
    return board[int(step)] == ' '
board = [' ',]*10
printTable()
plear = 'X'
while True:
    if plear == 'X':
        step = input('X走，请输入(1~9)：')
        if boardisFree(board,step):
            board[int(step)] = 'X'
            plear = 'O'
            #print(board)
            printTable()
            if(isWinner(board) == 'X'):
                print('X玩家赢了')
                answer = input('是否再来一局(N/Y)：')
                if answer.upper() == 'Y':
                    board = [' ',]*10
                    continue
                if answer.upper() == 'N':
                    break
        else:
            print('该格子已有棋')
            printTable()
            continue
    if plear == 'O': 
        step = input('O走，请输入(1~9)：')
        if boardisFree(board,step):
            board[int(step)] = 'O'
            plear = 'X'
            #print(board)
            printTable()
            if(isWinner(board) == 'O'):
                print('O玩家赢了')
                answer = input('是否再来一局(N/Y)：')
                if answer.upper() == 'Y':
                    board = [' ',]*10
                    continue
                if answer.upper() == 'N':
                    break
        else:
            print('该格子已有棋')
            printTable()
            continue